BH13272 Features:

• Includes (12) 8 mm x 1.250 header bolts, and (2) collector gaskets
• Suitable to support stock to mid-level engine performance levels
• Application-specific mandrel-bend geometry for adequate spark plug wire and component clearance
• The 304 stainless steel construction delivers strength and corrosion resistance
• Compatible with Holley Retrofit Oil Pan 510-302-20
• Compatible with GM TH350, TH400/3L80, 700R4, 4L60/4L70, 4L80/4L85, 6L80, and 6L90 automatic transmissions - For TH350, TH400/3L80, 700R4, and 4L80/4L85 transmissions, trimming to the bellhousing is required for clearance
• Compatible with stock 1988-1994 mechanical transmission shift linkage and 1995-1998 transmission shift cable
• Compatible with T56 Magnum manual transmissions (internal hydraulic release bearing only) in 2WD applications

Notes:

• Designed to be installed with Hooker Blackheart LS engine mounting components and exhaust systems for this specific application - Installing these headers with any other type or combination of engine and transmission mounting components may cause component clearance issues
• Will NOT fit 1999-2007 GM Silverado/Sierra (GMT800) Series Pickup Trucks

Emissions:

• This product is engineered to facilitate the installation of a later model, emissions-friendly engine into a vintage/classic vehicle. Consumers are responsible for complying with laws prohibiting tampering, and for ensuring that modified vehicles are operated in a manner that complies with applicable Federal guidelines